What is a purpose of the automatic bus transfer device shown in the illustration? Illustration EL- 0014

Question

Accepted Answer

Provide power to the 450 VAC emergency bus from the emergency generator in the emergency mode.

Answer

Provide power to the 450 VAC main bus from the 450 VAC emergency bus in the emergency mode.

Answer

Provide power to the 450 VAC emergency bus from the 450 VAC main bus in the emergency mode.

Answer

Provide power to the 450 VAC main bus from the emergency generator in the emergency mode.

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